1 . 对《人民英雄永垂不朽》一文说明顺序判断错误的一项是（     ）

A．由远及近，由外围到中央的空间顺序

B．由上到下，从东到北的方位顺序

C．由近代到现代的时间顺序

D．纪念碑建筑过程顺序

2 . There are many ________ (difference) between the two pictures.

3 . I’m ________ (已经) 13 years old.

4 . In American English, “m________” has the same meaning as the word “film” in British English.

5 . Don’t be nervous. Try your best and you’ll pass the exam ________ (easy).

6 . It’s fun ________ (open) all the birthday gifts.

7 . I want ________ (know) how you can get home.

8 . We all know the ________ (important) of English, so we study it hard.

9 . Lin Tao wants to be a ________ (飞行员) when he grows up.

10 . 甲、乙两个工程队安装排污管道，甲队单独安装需要4天完成，乙队单独安装需要8天完成．如果甲队先安装1天，剩下的管道由甲、乙两队合作完成，那么还需要几天才能安装完这些管道？